contribution by

Teller

...shock, from the atomic bomb’s explosion be used to compress and ignite the thermonuclear second core. Together these new ideas provided a firm basis for a fusion weapon, and a device using the
Teller-Ulam configuration, as it is now known, was successfully tested at Enewetak atoll in the Pacific on Nov. 1, 1952; it yielded an explosion equivalent to 10 million tons (10 megatons) of TNT.

Ulam

...fusion fuel. Teller suggested that radiation implosion, rather than mechanical shock, be used to compress the thermonuclear fuel. This two-stage radiation implosion design, which became known as the
Teller-Ulam configuration, led to the creation of modern thermonuclear weapons.

development of thermonuclear bombs

...on how a thermonuclear bomb could be constructed. The two-stage radiation implosion design proposed by these reports, which led to the modern concept of thermonuclear weapons, became known as the
Teller-Ulam configuration.

The other means became apparent between February and April 1951, following breakthroughs achieved at Los Alamos. One breakthrough was the recognition that the burning of thermonuclear fuel would be more efficient if a high density were achieved throughout the fuel prior to raising its temperature, rather than the classical Super approach of just raising the temperature in one area and then...